Semiconductor integrated circuit device

Details Semiconductor integrated circuit device Semiconductor integrated circuit device

2011-03-01

2011-03-01

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C375S354000, C370S503000

Reexamination Certificate

active

07899144

ABSTRACT:
The present invention is to provide a semiconductor integrated circuit device provided with a sufficient margin to variations of input waveforms. For example, the semiconductor integrated circuit device is provided with a clock and data determination circuit receiving an input data signal and a clock signal and outputting a recovered data signal, a first phase comparison signal and a second phase comparison signal and a clock signal generating circuit generating the clock signal with a phase corrected based on the first phase comparison signal and the second phase comparison signal. The clock and data determination circuit latches the input data signal in synchronization with the clock signal using a plurality of thresholds as determination reference and generates two kinds of candidates composed of combination of a recovered data signal and phase comparison signals by processing a latch result. Further, one of the two kinds of candidates is selected by a selector circuit based on a symbol of a recovered data signal at a previous cycle.

REFERENCES:
patent: 6545507 (2003-04-01), Goller
patent: 7433397 (2008-10-01), Garlepp et al.
patent: 2004/0114632 (2004-06-01), Yuuki et al.
patent: 2006/0193414 (2006-08-01), Gregorius et al.
patent: 2004-180188 (2004-06-01), None
K. Yamaguchi, et al., “12Gb/s Duobinary Signaling with x2 Oversampled Edge Equalization”, 2005 IEEE International Solid-State Circuits Conference Digest of Technical Papers, Feb. 7, 2005, pp. 70-71.

Affiliated with

Also associated with

Rating

Semiconductor integrated circuit device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor integrated circuit device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor integrated circuit device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2728734